\(4x^2-3xy+2y^2+5xy-7y^2-x^2\) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying \(4x^2-3xy+2y^2+5xy-7y^2-x^2\)?
Explanation opens after your attempt
A. \(3x^2+2xy-5y^2\)
Concept
\(4x^2-x^2=3x^2\), (-3xy+5xy=2xy), and \(2y^2-7y^2=-5y^2\).
Why this answer is correct
The correct answer is A. \(3x^2+2xy-5y^2\). \(4x^2-x^2=3x^2\), (-3xy+5xy=2xy), and \(2y^2-7y^2=-5y^2\).
Exam Tip
\(4x^2-x^2=3x^2\), (-3xy+5xy=2xy), और \(2y^2-7y^2=-5y^2\)।
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